German Serapid workpiece fixtures Serapid model Serapid price

Serapid workpiece fixtures are devices used in the manufacturing process to secure the workpiece in the correct position for machining or inspection, also known as jigs. Broadly speaking, any device used to quickly, conveniently, and safely install a workpiece during any step of the process can be called a fixture. Fixtures typically consist of locating elements (to determine the correct position of the workpiece within the fixture), clamping devices, tool-setting guide elements (to determine the relative position of the tool and workpiece or guide the tool direction), indexing devices (allowing the workpiece to undergo machining at several stations in a single setup, including rotary indexing devices and linear indexing devices), connecting elements, and fixture bodies (fixture bases). Examples include welding fixtures, inspection fixtures, assembly fixtures, and machine tool fixtures, among which machine tool fixtures are the most common and are often referred to simply as fixtures. When machining a workpiece on a machine tool, to ensure that the surface meets the technical requirements specified in the drawing, such as dimensions, geometric shape, and mutual positional accuracy with other surfaces, the workpiece must be properly located (positioned) and securely clamped (clamped) before machining.

Serapid workpiece fixture classification

1) Lathe fixtures: Fixtures used on lathes to machine internal and external rotational surfaces and end faces of workpieces are called lathe fixtures. Most lathe fixtures are mounted on the spindle, while a minority are mounted on the saddle or bed. 2) CMM fixtures: Used on coordinate measuring machines, utilizing modular support and reference devices to achieve flexible fixation of the measured workpiece. This device allows for automatic programming to support the workpiece and establish an unlimited number of workpiece configuration reference points. Advanced dedicated software can directly generate the workpiece clamping program within seconds using the workpiece's geometric data. 3) Industrial robot fixtures: Mounted on industrial robots for use in industrial automation equipment, representing one of the new technologies in modern industrial automation. They primarily appear in modern industrial production in conjunction with robots, with common applications in automated unmanned factories for machine loading/unloading, workpiece palletizing/depalletizing, welding, grinding, etc. 4) Milling machine fixtures: Mounted on the milling machine table, moving with the table during feed motion. They mainly consist of locating devices, clamping devices, fixture bodies, connecting elements, and tool-setting elements. During milling, cutting forces are high and cutting is intermittent, resulting in significant vibration; therefore, milling fixtures require high clamping force, and high stiffness and strength. 5) Bearing housing fixtures: To ensure and improve the production quality of bearing housings, in addition to machine tools and other mechanical equipment, a large amount of process equipment is used, including bearing housing fixtures, molds, cutting tools, and related auxiliary tools. A bearing housing fixture is a specialized production tool designed to ensure the product quality of bearing housings, making the production process more convenient. Different bearing housing fixtures vary in structure, form, operating conditions, and design principles, resulting in a wide variety of types and styles, occupying a significant proportion in both quantity and variety. This type of bearing housing fixture can accurately determine the relative position between the workpiece and the tool, allowing the workpiece to be clamped to perform the necessary movements during machining. Since bearing housing fixtures play a crucial role in the production process, the drafting of their design drawings is also very important.

Serapid workpiece fixture classification

1) General-purpose fixtures: General-purpose fixtures are standardized fixtures that can be used to machine different workpieces within a certain range. Examples include three-jaw chucks and four-jaw independent chucks on lathes, and vises, dividing heads, and rotary tables on milling machines. These fixtures are generally produced by specialized factories and are often supplied to users as machine tool accessories. Their characteristics are wide adaptability and low production efficiency, making them mainly suitable for single-piece and small-batch production. 2) Dedicated fixtures: Dedicated fixtures are specifically designed for a particular operation on a specific workpiece. Their characteristics include compact structure, rapid, convenient, and labor-saving operation, ensuring high machining precision and production efficiency. However, the design and manufacturing cycle is long, and manufacturing costs are high. When the product changes, the fixture becomes obsolete and is scrapped. They are only suitable for production with fixed products and large batches. 3) Universal adjustable fixtures and group fixtures: Their characteristic is that some components of the fixture can be replaced and some devices adjusted to accommodate the machining of different parts. Fixtures used for group machining of similar parts are called group fixtures. Compared to group fixtures, universal adjustable fixtures have less clearly defined machining objects and a wider scope of application. 4) Modular fixtures: Modular fixtures are assembled from a set of pre-manufactured standard components and parts according to the machining requirements of the part. Manufactured by specialized manufacturers, their characteristics include flexibility, strong versatility, short manufacturing cycle, and reusability of components, making them particularly suitable for new product prototyping and single-piece/small-batch production. 5) Pallet fixtures: Pallet fixtures are used in automated lines. This type of fixture not only serves to clamp the workpiece but also moves as one unit with the workpiece along the automated line from one station to the next for different machining operations.

Serapid workpiece fixture applications

1) Ensures stable machining precision of the workpiece: When clamping a workpiece with a fixture, the positional accuracy of the workpiece relative to the tool and machine tool is guaranteed by the fixture, unaffected by the worker's skill level, ensuring consistent machining precision for a batch of workpieces. 2) Reduces auxiliary time and improves labor productivity: Using fixtures makes workpiece clamping convenient and fast, eliminating the need for layout and alignment, significantly reducing auxiliary time; clamping the workpiece in a fixture increases its rigidity, allowing for higher cutting parameters; fixtures capable of clamping multiple workpieces or at multiple stations can be used, and high-efficiency clamping mechanisms can be adopted to further improve labor productivity. 3) Expands the usage range of machine tools, achieving multi-functionality: By attaching different types of fixtures according to the forming motion of the machining machine tool, the original process range of the machine tool can be expanded. For example, installing a boring template on the carriage of a lathe or the table of a radial drilling machine allows for boring operations on box-type parts. 4) Ensures machining precision: Using fixtures for installation allows for accurate determination of the mutual positions between the workpiece, machine tool, and tool. The positional accuracy of the workpiece is guaranteed by the fixture, unaffected by the worker's skill level, resulting in high and stable machining precision. 5) Improves productivity and reduces costs: Clamping workpieces with fixtures allows for rapid positioning and clamping without alignment, significantly reducing auxiliary time; clamping workpieces with fixtures increases workpiece rigidity, allowing for higher cutting parameters; fixtures for clamping multiple workpieces or at multiple stations can be used, and high-efficiency clamping mechanisms can be adopted, all of which contribute to improved labor productivity. Additionally, using fixtures stabilizes product quality, reduces scrap rates, allows for the assignment of workers with lower skill levels, and significantly lowers production costs. 6) Expands the process range of machine tools: Using dedicated fixtures can change the original purpose of the machine tool and expand its usage range, achieving multi-functionality. For example, after installing boring template fixtures on a lathe or radial drilling machine, boring operations can be performed on hole systems of box-type parts; specialized fixtures can also convert a lathe into a broaching machine, fully leveraging the capabilities of general-purpose machine tools. 7) Reduces workers' labor intensity: Clamping workpieces with fixtures is convenient and fast; when using pneumatic, hydraulic, or other clamping devices, workers' labor intensity can be reduced.

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